Efron posted a shirtless pic of the duo on Instagram along with the caption, “Whether you're a #KanyeWest﻿ fan or not, fans are #Bound2 get a kick out of this new still from #ZacEfron and #SethRogen's film #NeighborsMovie Check out all the neighborly shenanigans when the comedy hits theaters next May! #uhhuhhoney (sic)”